CVE-2026-105244
CVE-2026-105244: 1 tracked advisory record across Apache. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Apache
1 advisory- Advisory severityMedium5.3
Medium [CVE-2026-105244] Improper Encoding or Escaping of Output vulnerability in the RemoteSyslogAppender of Apache log4net
CVE-2026-105244Source published Source updated
Improper Encoding or Escaping of Output vulnerability in the RemoteSyslogAppender of Apache log4net. Every character outside visible ASCII and space was removed from the record instead of being escaped, so non-ASCII text and control characters such as tabs disappeared without notice. A party whose data reaches a log message could make a distinct value look identical in the record, for example a user name holding a zero-width space logged as admin. Only applications that use RemoteSyslogAppender are affected. This issue affects Apache log4net: from 1.2.12 before 3.5.0. Users are recommended to upgrade to version 3.5.0, which fixes the issue.
- Related products — impact not confirmed
- Apache log4net
- Source-reported affected versions
- 1.2.12 before 3.5.0
- Source-reported fixed versions
- 3.5.0
- Mitigation guidance
- Users are recommended to upgrade to version 3.5.0, which fixes the issue.
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